3 papers
physics.atom-ph2025
Attosecond Transient Absorption Study of Coherent Hole Oscillation in Ar+
Nisnat Chakraborty, Miguel Alarcon, Michael P. McDonnell +6
We report on the observation, characterization, and control of the electron dynamics in ionized argon atoms. We utilized an intense mid-infrared (MIR) pulse to create a coherent su…
physics.optics2024
Comparative study of spectral broadening and few-cycle compression of Yb:KGW laser pulses in gas-filled hollow-core fibers
Islam Shalaby, Michael McDonnell, Colin Murphy +5
While industrial-grade Yb-based amplifiers have become very prevalent, their limited gain bandwidth has created a large demand for robust spectral broadening techniques that allow…
physics.atom-ph2024
Ultrafast Dynamics of the Rydberg States of CO: Autoionization and Dissociation Lifetimes
D. Biswas, J. K. Wood, I. Shalaby +1
We report the measurement of ultrafast relaxation dynamics of excited states of carbon dioxide molecule using time-resolved pump-probe photoelectron spectroscopy. Neutral ground st…